These drones can open doors and let the rest of the swarm in

Researchers at Stanford University and EPFL have developed drones that can anchor themselves onto a surface and lift objects that are 40 times their own weight. The FlyCroTugs — aka flying, micro, tugging robots — use gecko-inspired adhesive to adhere to smooth surfaces and micro-spines that look like tiny fish hooks to latch onto rough surfaces. Read more...

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